KR102371638B1 - Rotational Uplift System of Bridges - Google Patents

Abstract

The present invention relates to a rotational lifting system of a bridge superstructure. Specifically, the rotational lifting system of a bridge superstructure comprises: an upper plate positioned on a lower portion of a superstructure; a lower plate positioned on a lower portion of the upper plate and positioned on an upper portion of a substructure; a rotation lifting unit positioned between the upper plate and the lower plate, and inducing an ascent through rotation; a driving unit rotating and driving the rotation lifting unit; and a control unit controlling an operation of the driving unit. According to the present invention, the rotational lifting system of a bridge superstructure uses the driving power of a drive motor and the rotation lifting unit using a rotational lifting system instead of a hydraulic jack lifting system of a conventional bridge to precisely and uniformly lift a superstructure. Also, the rotational lifting system of a bridge superstructure can be controlled at all positions through wireless communication equipment to allow a worker to safely and conveniently lift the superstructure at a work site.

Description

Rotary Uplift System of Bridges

The present invention is an invention for a rotary lifting system of an upper structure of a bridge that is positioned between the upper structure and the lower structure of the bridge (Br) to raise the upper structure.

Patent Invention 001 is capable of raising the bridge deck to a certain height when lifting the bridge, and at this time, replace the seat device or maintain the elevated state to complete the repair/reinforcement work. It relates to a construction method and its device. To this end, the present invention consists of a base and an upper plate, and the base is provided with a fixing member having an uphill step on both sides, and a hydraulic cylinder is located between the fixing members to lift the upper plate, and the upper plate is the extension of the hydraulic cylinder. It is characterized in that the wedge member having a descending step difference is installed on both sides of the bottom so that it can engage with the uphill step of the fixing member and maintain the lifted state when ascending. In addition, the present invention is installed between the abutment (or pier) and the bridge top plate by seating the upper plate on which the wedge member having the downhill step difference on both sides of the bottom surface is formed so as to be able to advance and retreat on the base where the fixing member having the uphill step difference is formed on both sides. Step, After placing a hydraulic cylinder between the fixing members, applying hydraulic pressure to raise the upper plate and the bridge upper plate, and closing the hydraulic path of the hydraulic cylinder when it is raised to a set height Elevating state by rotating the rotating member with one end rotatably bound to the fixed piece and screwed with the wedge member at the other end in one direction to advance the wedge member so that the uphill step of the fixed member and the downhill step of the wedge member are engaged with each other It is characterized in that it comprises the steps of maintaining the hydraulic pressure and removing the hydraulic cylinder from between the fixing members by reducing the hydraulic pressure of the hydraulic cylinder to complete the lifting operation.

Patent Invention 002 relates to a bridge deck lifting system combined with a safety support bolt capable of upper extension and movement. This is to make the bridge bearing replacement work more efficient. The present invention for realizing this is to raise the fish beam to replace and repair the bridge bearing seated on the upper surface of the pier to support the fish beam on which the bridge top plate is seated. In the bridge upper plate lifting system for replacing the bridge support, the jack support for supporting the hydraulic jack is seated on the upper surface of the pier; Support bolts are fastened to both sides of the jack support; It is characterized in that the hydraulic jack is divided into an upper plate and a lower plate to guide the expansion and contraction flow of the fish beam in the throttle direction, and an expansion and contraction guide plate provided with a plurality of guide rods is configured between the upper plate and the lower plate.

Patent Invention 003 discloses a plurality of upper frames mounted on the upper surface of a pier of a bridge in which a pedestal device is installed, and a hinge means on both sides of each of the upper frames so as to be in contact with the side of the pier even if inclined between the upper and side surfaces of the pier. Impression bracket provided with a rotating frame that is coupled as possible and is integrally formed with a hydraulic ram cradle protruding in the left and right direction while facing upward; It is located on the hydraulic ram cradle plate, and raises the upper structure of the bridge according to the supply of hydraulic pressure, but the hydraulic ram cradle plate and the lower surface of the upper structure of the bridge are each not in a horizontal state, but the hydraulic housing is adjusted to a horizontal state and a plurality of hydraulic rams provided with an upper angle adjusting unit and a lower angle adjusting unit for maintaining; displacement detecting means coupled to each of the hydraulic rams while facing the lower surface of the upper structure to detect a displacement value according to the lifting of the upper structure; a hydraulic pressure supply means connected to the hydraulic ram through a hydraulic line to supply hydraulic pressure to each of the hydraulic rams; and a control unit electrically connected while communicating with each of the hydraulic ram, the displacement detecting means and the hydraulic pressure supply means by wire or wirelessly to control the lifting operation of each of the hydraulic rams according to the displacement value detected by the displacement detecting means. It relates to the lifting system of the superstructure of the bridge.

In patent invention 004, in the structure lifting method using cross-section enlargement, after simply assembling and installing a laminated support to maintain the raising state of the upper structure, the height adjustment is possible through height adjustment of the stacked support capable of quickly and precisely raising the upper structure. And it relates to a structure lifting method using the same, wherein the height-adjustable stacked support includes a plurality of intermediate ring stacked parts that allow upper and lower middle ring bands to be inserted into each other and stacked in a socket manner; And by the operation of the hydraulic jack installed between the upper plate and the lower plate in the uppermost intermediate ring stacked part, the load transmitted from the upper structure is transferred to the lower support through the lower middle ring stacked part and the base plate part, and is in close contact with the lower surface of the upper structure by prestressing. It includes; a height adjustment plate portion to be.

KR 10-0775729 B1 (Registration date November 05, 2007) KR 10-1659250 B1 (Registration Date September 13, 2016) KR 10-2021850 B1 (Registration Date September 09, 2019) KR 10-2170772 B1 (Registration date October 21, 2020)

The present invention relates to a rotary lifting system of the superstructure of a bridge, and in general, the bridge (Br) supports the superstructure of the bridge for maintenance and improvement of seismic performance, such as replacement of the pedestal device for repair and reinforcement of the old bridge after construction. Or, an impression operation is required to raise it. However, in the conventional lifting of the bridge superstructure, the work was performed in units of one seat unit in the past, and the damage to the structure due to unequal raises, the increase in the construction period due to individual raises, resulting in inefficiencies. However, as new lifting methods such as simultaneous raising of superstructures have been recently proposed, constructability and economic feasibility have been improved. However, this method also utilizes hydraulic pressure, and it is practically impossible to raise the bridge superstructure evenly by simultaneously controlling the pressures of hydraulic devices in different positions. It was accompanied by large and small problems such as the return of hydraulic pressure, oil leakage due to breakage of the hydraulic hose, and overload of some hydraulic jacks due to the eccentricity of the superstructure.

The present invention relates to a rotary lifting system of a bridge superstructure, and specifically, an upper plate positioned under the superstructure; and a lower plate positioned below the upper plate and positioned above the lower structure; and a rotary lifting unit positioned between the upper plate and the lower plate to induce lifting and lowering through rotation; and a driving unit for rotatingly driving the rotary lifting unit. ; and a control unit for controlling the operation of the driving unit.

The present invention relates to a rotary lifting system for a bridge upper structure, wherein the rotary lifting unit includes: a lifting plate for supporting the lower surface of the upper plate; and a bolt unit coupled to the lifting plate and vertically elevating the lifting plate; a rotating nut unit coupled to the bolt unit and rotated; and a rotating gear unit formed on one side of the rotating nut unit and configured to rotate the rotating nut unit.

The present invention relates to a rotatable lifting system for a bridge superstructure, comprising: one or more drive transmission gears formed on one side of the rotary elevating part, meshed with the rotary gear, and transmitting a driving force to the rotary gear; and one or more guide gears formed on the other side of the rotary lifting unit, engaged with the rotary gear unit, and supporting the rotary lifting unit.

The present invention relates to a rotary lifting system for a bridge superstructure, wherein the driving unit includes a driving gear for rotating the driving transmission gear unit; and a driven bevel gear which is fastened on the same shaft as the driving gear and transmits a rotational force to the driving gear; and a driving bevel gear which transmits a driving force to the driven bevel gear; and a drive shaft to which the drive bevel gear is fastened; and a drive motor for driving the drive shaft.

The present invention relates to a rotary lifting system for a bridge upper structure, wherein the rotary lifting system includes an upper plate guide part formed on the upper plate and protruding in the direction of the lower plate; and a support surface formed on the lower plate and protruding toward the upper plate, wherein the upper plate guide part and the lower plate guide part are mutually supported.

The present invention relates to a rotary lifting system for a bridge superstructure, wherein the rotary lifting unit and the driving unit are provided separately from each other, and include fastening with an elastic clip unit.

The present invention relates to a rotary lifting system for an upper structure of a bridge, the upper structure lifting system comprising: a load sensor formed on the elevating plate; and a displacement sensor provided between the upper plate and the lower plate, and a torque sensor formed in the driving unit.

The present invention relates to a rotary lifting system of a bridge superstructure, and transmits the measured values measured through the load sensor (LS), the displacement sensor, and the torque sensor to the control unit through a wireless communication device, and the control unit transmits the Storing the measurement value received through the wireless communication equipment, arithmetic, and outputting the result to the monitor unit; includes that the operator can recognize and control the work situation in real time.

The present invention relates to a rotary lifting system of a bridge superstructure, and when the threshold values of load and displacement set through the control unit are exceeded during operation of the rotary lifting system of a bridge superstructure, an alarm for a dangerous stage is provided by a monitoring unit or It includes delivering to the operator through a separate alarm means.

The configuration of the rotary lifting system of the bridge superstructure according to the present invention utilizes the driving force of the rotary lifting unit and the driving motor using the rotary lifting system instead of the hydraulic jack lifting system of the existing bridge to raise the superstructure precisely and evenly. can In addition, the control of the rotary lifting system of the upper structure of the bridge at all positions can be controlled through the wireless communication device, so that the operator can safely and conveniently raise the upper structure at the work site.

1 to 5 are a rotary lifting system of the bridge superstructure of the present invention.
6 to 8 are installation examples of the bridge superstructure rotary lifting system of the present invention.

Hereinafter, the most preferred embodiment of the present invention will be described in detail in order to explain in detail enough that a person of ordinary skill in the art can easily carry out the present invention.

The numbers cited in the examples below are not limited only to the objects of reference, and may be applied to all examples. An object that exhibits the same purpose and effect as the configuration presented in the embodiment corresponds to an equivalent replacement object. The higher-level concept presented in the embodiment includes sub-concept objects that are not described.

[Embodiment 1-1] The present invention relates to a rotary lifting system of the bridge superstructure 10, specifically, the upper plate 110 located under the superstructure; and a lower plate 130 positioned below the upper plate and positioned above the lower structure 20; and a rotary lifting unit positioned between the upper plate 110 and the lower plate to induce elevation through rotation ( 100); and a driving unit 200 for rotating the rotary lifting unit; and a control unit 300 for controlling the operation of the driving unit.

[Embodiment 1-2] The present invention relates to a rotary lifting system of an upper structure of a bridge. In Example 1-1, the rotary lifting unit 100 includes: a lifting plate 120 for supporting the lower surface of the upper plate; and a bolt portion 121 coupled to the lifting plate and vertically elevating the lifting plate; and a rotating nut portion 122 that is coupled to the bolt and rotates; and a rotating gear unit 123 formed on one side of the rotating nut unit and rotating the rotating nut unit 122 .

[Embodiment 1-3] The present invention relates to a rotary lifting system for an upper structure of a bridge, and in Example 1-2, the rotating lifting unit 100 supports the rotating nut unit from the lower part, and a rotating bearing unit (160); and a bearing support part 161 that supports the lower surface of the bearing part and is fastened to the lower plate 130 .

[Embodiment 1-4] The present invention relates to a rotary lifting system for an upper structure of a bridge, and in Embodiment 1-3, the rotating nut part 122 and the bearing part 160, the bearing support part, and the lower plate The 130 includes a heat dissipation hole passing through each other uniaxially.

[Embodiment 1-5] The present invention relates to a rotary lifting system for a bridge superstructure, and in Examples 1-3, the bearing unit 160 is inclinedly supported by the rotary lifting unit 100, and the bearing A plurality of dimples are formed on the negative slope, and the dimples are filled with a friction reducing material.

The structure of the rotary lifting system 30 of the upper structure of the bridge supports the upper structure 10 of the bridge Br, and the upper plate 110 and the lower structure 20 located on the lower surface of the upper structure 10 are located on the upper surface. A lower plate 130 and a rotary lifting unit 100 that is raised and lowered through rotation between the upper plate and the lower plate are provided. Here, a driving unit 200 for transmitting a driving force to rotate the rotary lifting unit to perform a lifting operation and a controller 300 for controlling the operation of the driving unit are separately provided. The rotary lifting unit 100 is specifically provided with a lifting plate 120 positioned below the upper plate 110 and supporting the upper plate, and a bolt portion 121 vertically coupled to the lifting plate to form a screw thread. The bolt part is screwed into the thread formed inside the rotation nut part 122 for elevating the bolt part 121 through rotation, and the rotation nut part receives the driving force and rotates through the rotation to raise the bolt part through the thread. The lifting and lowering of the system 30 is implemented. Here, the screw thread formed on the inner side of the rotating nut part 122 and the bolt part 121 may have a square or trapezoidal shape for stable support of a high load transmitted vertically. The rotating nut unit forms a rotating gear unit 123 on one side to perform a rotating operation, and receives power from the driving unit 200 through the rotating gear unit.

In addition, the rotating nut unit 122 supports the vertical load transmitted through the upper plate 110 and the lifting plate 120 and the bolt unit 121 during the rotating operation and stably transmits it to the lower structure 20 . To include a bearing unit 160 at the lower portion. The bearing part supports the vertical force together with the rotating nut and serves to rotate at the same time, rotates like the rotating nut 122 and assists the rotation of the rotating nut to share the circumferential speed generated by the rotation. . Through this, the rotation nut part 122 and the bearing part 160 rotate respectively, thereby reducing the speed generated between the rotation nut part and the bearing part by half and thereby reducing friction. A bearing support part 161 is further formed on the lower surface of the bearing part 160 to prevent separation of the bearing and guide rotation, and the bearing support part is fastened and fixed to the lower plate 130 . In addition, the rotating nut unit and the bearing unit 160 and the bearing support unit ( 161) and the lower plate may have heat dissipation holes formed in the same axial direction, respectively.

In addition, the bearing unit and the rotating nut unit 122 are supported on a slope with each other, and have an inclination angle formed downward to prevent the rotating lifting unit from falling or departing from the bearing unit 160 , and compared to the projected area A large support area is secured to ensure stable load transmission, and at the same time, a plurality of dimples are formed on the slope of the bearing part, and a friction reducing material is filled in the dimples to prevent rotation of the rotating nut on the upper surface of the bearing part 160. It can be implemented to make it run smoothly. In addition, as in the heat dissipation hole, it is possible to prevent changes in physical properties of the member due to heat generation due to friction and deformation and damage of the lifting member in advance. The rotational lifting system of the upper structure includes a driving unit that transmits a rotational force to the rotating gear unit 123 of the rotating nut unit 122 for driving the device, and a control unit 300 that controls the driving unit 200 . The control unit serves to simultaneously or separately control the driving unit 200 of the rotary lifting system of the plurality of bridge superstructures. In detail, the control unit 300 controls the operation of the rotary lifting system 30 of the upper structure by including and operating the power supply unit, the monitor unit 400 and the wireless communication equipment (RC) configuration to be described later.

In addition, it collects, judges, and outputs the measured values transmitted through various sensors (load sensor (LS) and displacement sensor (DS), etc.) before, during, and after work so that the operator can check in real time, and preset conditions If it is out of the range (load condition, displacement condition, etc.), it notifies the operator through an alarm means, and controls the operation of the rotary lifting system 30, etc. It serves to control the overall steps of the bridge (Br) raising process.

[Embodiment 2-1] The present invention relates to a rotary lifting system for an upper structure of a bridge, and in Example 1-2, it is formed on one side of the rotary elevating part 100, and is meshed with the rotary gear part, and the one or more drive transmission gear units 140 for transmitting a driving force to the rotation gear unit 123; and one or more guide gear units 150 formed on the other side of the rotary lifting unit, engaged with the rotary gear unit, and supporting the rotary lifting unit 100 .

[Embodiment 2-2] The present invention relates to a rotary lifting system for an upper structure of a bridge, and in Embodiment 2-1, the drive transmission gear part and the guide gear part are supported by the lower plate 130, respectively, and the The shaft guide part protruding from the upper plate; the gear shaft part being inserted into and rotating.

In the configuration of the rotary lifting system of the upper structure of the bridge, one side and the other side of the rotary gear unit 123 to stably transmit the driving force to the rotary lifting unit and to prevent separation due to the rotation of the rotary lifting unit 100 At least one drive transmission gear unit 140 and at least one guide gear unit 150 may be formed, respectively. The drive transmission gear unit may be provided in plurality in order to stably transmit the driving force by being in close contact with the rotation gear unit of the rotary lifting unit. When a plurality of the drive transmission gear unit 140 is meshed with the rotation gear unit 123, the gear coupling that transmits the drive by one point contact transmits the driving force to the plurality of contacts, so that stable power transmission and support are possible. Accurate power transmission is possible and the lifting and lowering of structures can be implemented precisely. In addition, at the other side of the drive transmission gear unit, one or more guide gear units ( 150) can be formed. The drive transmission gear unit and the guide gear unit may be provided together with the rotary lifting unit 100 in the rotary lifting system 30 , and in this case, supported by the lower plate 130 , and mounted on the upper plate 110 . It is partially inserted into the protruding shaft guide part and is inserted into the rotating gear shaft part.

[Embodiment 3-1] The present invention relates to a rotary lifting system for a bridge superstructure. In Embodiment 2-1, the driving unit includes a driving gear 210 for rotating the drive transmission gear unit 140; and a driven bevel gear 220 that is fastened on the same shaft as the driving gear and transmits a rotational force to the driving gear 210; and a driving bevel gear 230 for transmitting a driving force to the driven bevel gear; and a drive shaft 240 to which the drive bevel gear is fastened, and a drive motor 250 for driving the drive shaft.

[Embodiment 3-2] The present invention relates to a rotary lifting system for a bridge superstructure, and in Embodiment 3-1, the driving motor 250 and the driving shaft 240 are connected by a coupler; do.

[Embodiment 3-3] The present invention relates to a rotary lifting system for a bridge superstructure, and in Embodiment 3-2, a first reduction unit 260 is further provided between the coupler and the driving motor. include

[Embodiment 3-4] The present invention relates to a rotary lifting system for a bridge superstructure, and in Embodiment 3-3, the first reduction unit includes a reduction gear.

[Embodiment 3-5] The present invention relates to a rotary lifting system of a bridge superstructure, and in Embodiment 3-3, it is positioned between the first reduction unit 260 and the coupler, and the first reducer shaft a worm gear coupled to; and a worm wheel meshed with the worm gear and coupled to the coupler;

In the configuration of the rotary lifting system of the upper structure of the bridge, the drive unit 200 is configured to transmit a driving force through a drive transmission gear that meshes with the rotation gear unit 123 of the rotary lifting unit 100, specifically, drive transmission The driving gear 210 meshed with the gear unit 140 and the driven bevel gear 220 are fastened on the same shaft together with the driving gear, and transmit a rotational force to the driving gear 210, and a driving force to the driven bevel gear It is composed of a driving bevel gear 230 for transmitting , a driving shaft 240 to which the driving bevel gear is fastened, and a driving motor 250 (driving motor) for driving the driving shaft. The driving shaft 240 may be connected to a driving motor through a coupler, and the driving gear and the driven bevel gear 220 are coupled to the shaft with a fastening key. The driven bevel gear is positioned above or below the driving gear 210 to mesh with the driving bevel gear 230 , and the driving bevel gear receives driving force from the driving motor 250 through the driving shaft. In addition, the driving unit 200 further includes a first reduction unit 260, which is a general reduction gear, in order to reduce the number of rotations transmitted through the driving motor and to amplify the torque by the reduction ratio.

Accordingly, when the driving unit is operated, the first deceleration unit decelerates the rotational speed of the driving unit 200 and amplifies the torque to transmit the driving force through the driving shaft 240 . In addition, in order to amplify the rotational force in the driving unit 200 and prevent reverse rotation due to a malfunction of the elevating part of the rotary lifting system 30 of the bridge superstructure, it is formed of a worm gear and a worm wheel. A second reduction unit 270 may be further added.

[Embodiment 4-1] The present invention relates to a rotary lifting system 30 of a bridge upper structure, and in Example 1-1, the rotary lifting system is formed on the upper plate and protrudes in the direction of the lower plate upper plate guide portion 111; and the lower plate guide part 131 formed on the lower plate 130 and protruding in the direction of the upper plate 110; a supporting surface on which the upper plate guide part and the lower plate guide part are mutually supported. do.

[Example 4-2] The present invention relates to a rotary lifting system for a bridge superstructure, and in Example 4-1, a friction reducing material is formed on the support surface.

[Example 4-3] The present invention relates to a rotary pulling system for a bridge superstructure, and in Example 4-2, the friction reducing material is polytetrafluoroethylene.

In the configuration of the rotary lifting system of the upper structure of the bridge, the upper plate 110 and the lower plate 130 have an upper plate guide part ( 111) and a lower plate guide part 131 formed on the lower plate 130 and protruding toward the upper plate 110 is provided. This serves to prevent deformation of the device due to external force and driving force generated in the lifting system in addition to the vertical lifting operation during the lifting operation, and to assist in implementing only the lifting operation on a predetermined vertical axis. In detail, the upper plate guide part 111 and the lower plate guide part are in contact with mutually supported support surfaces, and the support surfaces may be implemented in various ways by utilizing mutually interfering shapes such as a key-groove structure. In addition, a friction reducing material may be formed on the support surface to facilitate support and movement of the uniaxial axis, and may be typically polytetrafluoroethylene (PTFE (Polytetrafluoroethylene, Teflon)), polyamide (PA6), UHMWPE (Ultra high molecular weight polyethylene), etc., supports high loads and can select and use high molecular weight plastics with a low friction coefficient.

[Example 5-1] The present invention relates to a rotary lifting system for a bridge upper structure, and in Example 1-1, the rotary lifting unit 100 and the driving unit are provided separately from each other, and an elastic clip unit ( 500);

[Example 5-2] The present invention relates to a rotary lifting system of a bridge upper structure, and in Example 5-1, one end of the elastic clip part 500 is fixed to the side of the rotary lifting part, and the other end is It includes hook-coupled to the side of the driving unit.

[Example 5-3] The present invention relates to a rotary lifting system for a bridge superstructure, and in Example 5-1, the elastic clip part 500 includes applying an elastic force to the tension of a coil spring.

In the configuration of the rotary lifting system of the upper structure of the bridge, the rotary lifting unit 100 and the driving unit 200 may be provided separately from each other. This is in consideration of the operator's efficient transport of the equipment and the convenience of installation during the pulling operation. Therefore, when the rotary lifting system 30 is installed, the combination of the rotary lifting unit 100 and the driving unit is required again, and when combined, the rotary lifting unit and the driving unit 200 are connected to each other through the elastic clip unit 500 on one side. is signed on The elastic clip part 500 may be fixed to one side of the rotary lifting unit 100 and the driving unit and coupled to the other side in the form of a hook, etc. For convenience of connection, a fastening member such as a turnbuckle may be used. . In addition, when an overload occurs on either side due to a malfunction occurring in the load transmission line of the driving unit 200 and the rotary lifting unit, the elastic clip part includes a drive transmission gear unit and the driving unit provided on the rotary lifting unit 100 side. It is possible to cope with load resistance against overload by separating the driving gear provided on the side. In detail, in the drive transmission gear unit 140 and the drive gear 210 unit, when a load resistance that exceeds the tension range of the elastic clip unit 500 between the meshing behavior is generated, the elastic deformation of the spring It is formed to arbitrarily disengage the meshing between the gears, and serves to induce idle rotation. To this end, the elastic clip part 500 may be applied as a normal coil spring, and in this case, the range of load resistance according to a malfunction may be adjusted by adjusting the tension of the coil spring.

[Embodiment 6-1] The present invention relates to a rotary lifting system for an upper structure of a bridge, and in Embodiment 1-2, the upper structure lifting system includes a load sensor (LS) formed on the elevator plate; and a displacement sensor DS provided between the upper plate 110 and the lower plate 130 and a torque sensor TS formed in the driving unit 200 .

[Example 6-2] The present invention relates to a rotary lifting system for a bridge superstructure, and in Example 6-1, the measured values measured through the load sensor LS, the displacement sensor, and the torque sensor are Transmits to the control unit through a wireless communication device (RC); the control unit 300 stores the measurement value received through the wireless communication device, arithmetic, and outputs the result to the monitor unit 400; This includes being able to recognize and control the work situation in real time.

[Example 6-3] The present invention relates to a rotary lifting system of a bridge superstructure, and in Example 6-1, a load preset through the control unit 300 and When the threshold value of displacement is exceeded, an alarm for the dangerous stage is transmitted to the operator through the monitor unit 400 or a separate alarm means.

The rotary lifting system of the upper structure of the bridge can interpolate a load sensor (LS) (Load sensors), that is, a load cell, for measuring a load in the load transmission area, specifically, the lifting plate 120, vertically and horizontally As a displacement sensor for measuring displacement, etc., a difference in linear distance can be measured by using a conventional LVDT (Linear Variable Differential Transformer). In addition, in order to measure the driving force of the driving unit, a torque sensor (TS), which is a torque meter, may be added to a position at which the driving force is transmitted, specifically, to a driving shaft. In order to transmit the measured values measured according to the operation of the rotary lifting system of the upper structure of the bridge to the control unit 300 and the information input from the control unit to the rotary lifting system of the upper structure of the bridge, the device and the control unit 300 have wireless communication equipment (Radio Communication Unit) can be applied.

In addition, the measurement value received through the wireless communication equipment (RC) is stored in the control unit 300, and output through the monitor unit 400 in the form of a PC, smart phone, tablet, etc. as an arithmetic result. In addition, the control unit may generate and output a control signal to control the driving unit 200 according to the received and analyzed measured values and to control the power supply unit for supplying power to the driving unit, and the driving unit 200 may In the case of being configured in plurality, the plurality of driving units 200 may be simultaneously controlled or only one selected driving unit may be operated. In addition, the power supply unit for driving the driving unit 200 may be formed as a separate battery or generator to generate or store necessary power. The control unit 300 can display the control situation in real time by the monitor unit 400 in the form of a worker's PC, smartphone, tablet, etc. When the set load and displacement thresholds are exceeded, an alarm for a dangerous stage can be quickly delivered to the operator through the monitor unit or a separate alarm means (Warning light).

Br: bridge
10: upper structure 20: lower structure
30: rotary impression system
100: rotary lifting unit
110: upper plate 111: upper plate guide part
120: lift plate 121: bolt part
122: rotating nut unit 123: rotating gear unit
130: lower plate 131: lower plate guide part
140: drive transmission gear unit 150: guide gear unit
160: bearing part 161: bearing support part
200: driving unit 210: driving gear
220: driven bevel gear 230: driven bevel gear
240: drive shaft 250: drive motor
260: first reduction unit 270: second reduction unit
300: control unit 400: monitor unit
500: elastic clip part
LS : load sensor DS : displacement sensor
TS : Torque sensor RC : Wireless communication equipment

Claims (9)

In the rotary lifting system of the bridge superstructure,
an upper plate positioned under the upper structure; and
A lower plate positioned below the upper plate and positioned above the lower structure; and
It is located between the upper plate and the lower plate, and induces elevation through rotation.
rotary lift; and
a driving unit for rotating the rotary lifting unit; and a control unit for controlling the operation of the driving unit;
The rotary lifting unit includes: a lifting plate for supporting the lower surface of the upper plate; and
Bolt unit coupled to the lifting plate and lifting the lifting plate up and down; and
a rotating nut unit that is screwed into the bolt unit and rotates; and
A rotating gear formed on one side of the rotating nut and rotating the rotating nut
including;
It is formed on one side of the rotary elevating part, is meshed with the rotary gear part, and the rotation
At least one drive transmission gear unit for transmitting the driving force to the electric fisherman; and
At least one guide gear formed on the other side of the rotary lifting unit, meshed with the rotary gear unit, and supporting the rotary lifting unit; includes;
The driving unit may include a driving gear configured to rotate the driving transmission gear unit; and
A driven bevel gear that is fastened on the same shaft as the driving gear and transmits a rotational force to the driving gear; and
a driving bevel gear that transmits a driving force to the driven bevel gear; and
a drive shaft to which the drive bevel gear is fastened; and
A rotational lifting system of a bridge superstructure comprising a; a drive motor for driving the drive shaft.
delete delete delete According to claim 1,
The rotary lifting system of the upper structure includes an upper plate guide part formed on the upper plate and protruding in the direction of the lower plate; and
A lower plate guide portion formed on the lower plate and protruding in the direction of the upper plate is provided;
The upper plate guide part and the lower plate guide part are mutually supported support surfaces; a rotary lifting system of the bridge superstructure comprising a.
According to claim 1,
The rotary lifting unit and the driving unit are provided to be separated from each other, the elastic clip portion; a rotary lifting system of the bridge superstructure comprising a fastening.
According to claim 1,
The rotational lifting system of the upper structure includes a load sensor formed on the lifting plate; and
a displacement sensor provided between the upper plate and the lower plate; and
A rotational lifting system of a bridge superstructure comprising a; torque sensor formed in the driving unit.
8. The method of claim 7,
The load sensor LS, the displacement sensor, and the torque sensor measure the measured value through a wireless communication device; transmits to the control unit, the control unit stores the measured value received through the wireless communication device, arithmetic and outputting the result value to the monitor unit so that the operator can recognize and control the work situation in real time.
8. The method of claim 7,
When the threshold value of load and displacement preset through the control unit is exceeded during operation of the rotary lifting system of the bridge superstructure, an alarm for the dangerous stage is transmitted to the operator through the monitor unit or a separate alarm means; The rotary lifting system of the bridge superstructure.

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